Fiber placement head pre-re-feeding device and use method thereof

Abstract

The invention provides a fiber placement head pre-resending device and a using method thereof, and relates to the technical field of composite material placement devices.The fiber placement head pre-resending device comprises a fixing support, a driving motor, a driving rotating wheel assembly, a guiding assembly, a spacer assembly and a driven wheel assembly; a driving motor is arranged on one side of the fixing support, a driving rotating wheel assembly is arranged on the other side of the fixing support and is in transmission connection with the driving motor, a guiding assembly is arranged above the driving rotating wheel assembly through the fixing support, and a spacer assembly is arranged below the driving rotating wheel assembly through the fixing support. A driven wheel assembly is arranged in the middle of the fixing support, and tows are clamped between the driven wheel assembly and the driving rotating wheel assembly. The invention further provides a using method of the pre-refeeding device, and tows pass through the pre-refeeding device. The technical problem that the laying precision is affected due to the fact that tows are always kept in a tensioned state in the prior art is solved, and the technical effect that the tension of the prepreg conveyed backwards to the re-conveying mechanism can be reduced is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of composite material placement devices, and in particular to a wire placement head pre-weighting device and a use method thereof. Background Art

[0002] With the growing demand for high-performance materials in the high-tech fields of aerospace, automobile manufacturing, and wind power generation, carbon fiber composites have attracted widespread attention due to their excellent mechanical properties and lightweight characteristics. Traditional manual laying methods can no longer meet the requirements of modern industry for precision and efficiency, so automatic laying machines for composite materials have emerged. The laying process of materials is precisely controlled by the laying machine, which not only improves production efficiency, but also ensures the consistency and reliability of components.

[0003] The fiber placement machine unwinds several prepregs from their respective reels and transports them to the fiber placement head through the prepreg yarn delivery system, and then lays the carbon fiber on the workpiece surface through the pressure roller.

[0004] The laying process of the wire laying machine mainly includes: wire bundle unwinding, wire bundle compacting, wire bundle re-feeding, wire bundle shearing, and wire bundle laying. In the prior art, the wire laying head on the wire laying machine is only provided with a re-feeding structure. Between the wire bundle unwinding and the wire bundle compacting, the wire bundle is always in a straight and tensioned state. The tension in this tensioned state will affect the re-feeding accuracy of the wire laying machine during high-speed laying, making the final laying flatness lower. Summary of the invention

[0005] The purpose of the present invention is to provide a pre-weighting device for a wire placement head and a method for using the same, so as to alleviate the technical problem in the prior art that the tensioning force of the wire bundle is always kept in a tensioned state, thereby affecting the accuracy of high-speed placement.

[0006] The present invention provides a wire laying head pre-weighting device, comprising: a fixed bracket, a driving motor, an active rotating wheel assembly, a guiding assembly, a spacer assembly and a passive wheel assembly; A driving motor is arranged on one side of the fixed bracket, and an active wheel assembly is arranged on the other side of the fixed bracket. The active wheel assembly is connected to the driving motor in transmission. A guide assembly is arranged above the active wheel assembly through the fixed bracket, and a spacer assembly is arranged below the active wheel assembly through the fixed bracket. A passive wheel assembly is provided in the middle of the fixed bracket, and the wire bundle is clamped between the passive wheel assembly and the active wheel assembly.

[0007] Further, the fixing bracket includes a left fixing bracket, a right fixing bracket, an upper bracket and a lower bracket; The upper bracket is in the shape of a door, one end of the upper bracket is connected to the left fixing bracket by bolts, the other end of the upper bracket is connected to the right fixing bracket by bolts, the upper bracket is vertically connected to two parallel lower brackets, the passive wheel assembly is fixed between the two parallel lower brackets, the right fixing bracket is fixed to the active rotating wheel assembly, the upper bracket is fixed to the guide assembly, and the bottom end of the lower bracket is fixed to the spacer assembly.

[0008] Further, the driving wheel assembly includes a pulley bracket, a first rotating shaft, a transmission wheel, a coupling, a second rotating shaft, a driving wheel frame, a rotating gear and a driving wheel; The pulley bracket is fixedly connected to the end of the right fixed frame, the pulley bracket is provided with a first rotating shaft, the first rotating shaft is sleeved with a transmission wheel, the transmission wheel is connected to the driving motor in transmission, the end of the first rotating shaft away from the right fixed frame is rotatably connected to the second rotating shaft through a coupling, the second rotating shaft is penetrated by the active rotating wheel frame, the active rotating wheel frame is fixedly connected to the passive wheel assembly, a rotating gear is sleeved on the middle part of the second rotating shaft, the outer circumferential surface of the rotating gear is clamped with the inner circumferential surface of the active rotating wheel, so that the rotating gear drives the active rotating wheel to rotate, and the active rotating wheel and the passive wheel assembly are arranged opposite to each other.

[0009] Furthermore, an output wheel is arranged on the output shaft of the driving motor, and the output wheel is connected to the transmission wheel through a synchronous belt.

[0010] Further, the passive wheel assembly includes an outer bracket, a cylinder frame, a cylinder, a telescopic rod, a passive wheel frame and a passive wheel; The outer bracket is in the shape of a door, and the surface of the outer bracket is fixedly connected to the active rotating wheel assembly. A plurality of cylinder frames arranged in parallel are arranged inside the outer bracket, and a cylinder is arranged at one end of each cylinder frame. A through hole is opened on the outer surface of each cylinder frame, and a telescopic rod is arranged in the through hole. The telescopic rod passes through the through hole and is fixedly connected to a passive wheel frame. A passive wheel is fixedly connected to the end of the passive wheel frame away from the cylinder frame, and the passive wheel is arranged opposite to the active rotating wheel assembly.

[0011] Further, the guide assembly includes a guide frame, a partition, a first fixed shaft and a first sliding roller; The top of the upper bracket is fixedly connected with a guide frame, on which a plurality of partitions are arranged, a sliding groove is formed between two adjacent partitions, and a first fixed shaft is arranged on the guide frame, on which a number of first sliding rollers corresponding to the sliding grooves are sleeved.

[0012] Further, the spacer assembly includes a second fixed shaft, a spacer plate and a second sliding roller; A second fixed shaft is fixedly connected between the ends of the two lower brackets, and a plurality of spacer plates are evenly arranged on the second fixed shaft. The spacer plates are all provided with concentric holes, and second sliding rollers are inserted into the concentric holes.

[0013] Furthermore, the driving motor is fixed to the wire laying machine body by bolts.

[0014] Furthermore, the fixing bracket is made of aluminum alloy, titanium alloy or glass fiber reinforced plastic.

[0015] The present invention also provides a method for using the wire placement head pre-weighting device, comprising the following steps: Step 1, fixing the fixed bracket between the steering assembly and the re-feeding assembly of the wire laying machine by bolts, and separating the tow transmitted from the steering assembly through the guide assembly to obtain the separated tow; Step 2: The driving motor drives the active wheel assembly to rotate and controls the passive wheel assembly to extend and retract, so that the separated silk bundle can be clamped between the passive wheel assembly and the active wheel assembly, and the clamping force is used to drive the separated silk bundle to move downward to obtain a clamped silk bundle; Step 3: After clamping, the fiber bundle is divided by the spacer assembly and transferred to the re-delivery assembly for re-delivery to complete the pre-re-delivery of the fiber placement head.

[0016] Beneficial effects: The present invention provides a pre-weighting device for a wire laying head, comprising: a driving motor is arranged on one side of a fixed bracket, a driving wheel assembly is arranged on the other side of the fixed bracket, the driving wheel assembly is connected to the driving motor in a transmission manner, and the driving motor is provided to provide power to the driving wheel assembly, so that the wire bundle can be clamped and transmitted downward; A guide assembly is arranged above the active wheel assembly through a fixed bracket, and a spacer assembly is arranged below the active wheel assembly through a fixed bracket. Through the guide assembly and the spacer assembly, each fiber bundle can be separated from each other to avoid interference between the fiber bundles. A passive wheel assembly is provided in the middle of the fixed bracket, and the wire bundle is clamped between the passive wheel assembly and the active rotating wheel assembly, so that each wire bundle can be individually controlled while reducing the wire bundle tension.

[0017] A wire placement head pre-re-feeding device of the present invention is installed under the steering device, which can bear the tension of the prepreg during the placement process. During the wire placement process, the tension of the prepreg transmitted backward to the re-feeding mechanism can be reduced, and the placement quality problems caused by unstable tension during the placement process can be reduced, thereby ensuring the flatness of the wire placement during the placement process. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1A schematic structural diagram of a wire placement head pre-re-delivery device provided in an embodiment of the present invention; Figure 2 A schematic structural diagram of an active rotating wheel assembly in a wire placement head pre-weighting device provided in an embodiment of the present invention; Figure 3 A schematic structural diagram of a passive wheel assembly in a wire placement head pre-weighting device provided in an embodiment of the present invention; Figure 4 A schematic diagram of the structure of a single cylinder in a passive wheel assembly in a wire placement head pre-weighting device provided in an embodiment of the present invention; Figure 5 A side view of a wire placement head pre-re-delivery device provided in an embodiment of the present invention; Figure 6 A flow chart of a method for using the wire placement head pre-re-delivery device provided in an embodiment of the present invention; Figure 7 Schematic diagram of the installation position of the wire laying head pre-weighting device provided in an embodiment of the present invention on the wire laying machine.

[0020] Icon: 100-fixed bracket; 101-left fixed bracket; 102-right fixed bracket; 103-upper bracket; 104-lower bracket; 200-driving motor; 201-output wheel; 202-synchronous belt; 300-driving wheel assembly; 301-pulley bracket; 302-first rotating shaft; 303-transmission wheel; 304-coupling; 305-second rotating shaft; 306-driving wheel frame; 307-rotating gear; 308-driving wheel; 400-guide assembly; 401-guide frame; 402-partition plate; 403-first fixed shaft; 404-first sliding roller; 500-spacer assembly; 501-second fixed shaft; 502-spacer plate; 503-second sliding roller; 600-passive wheel assembly; 601-external bracket; 602-cylinder frame; 603-cylinder; 604-telescopic rod; 605-passive wheel frame; 606-passive wheel. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0022] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0024] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the product of the invention is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0025] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0026] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] Some embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0028] like Figure 1 As shown, the present invention provides a wire placement head pre-weighting device, comprising: a fixed bracket 100, a driving motor 200, an active rotating wheel assembly 300, a guiding assembly 400, a spacer assembly 500 and a passive wheel assembly 600; A driving motor 200 is arranged on one side of the fixed bracket 100, and an active wheel assembly 300 is arranged on the other side of the fixed bracket 100. The active wheel assembly 300 is transmission-connected to the driving motor 200. A guide assembly 400 is arranged above the active wheel assembly 300 through the fixed bracket 100, and a spacer assembly 500 is arranged below the active wheel assembly 300 through the fixed bracket 100. A passive wheel assembly 600 is provided in the middle of the fixed bracket 100, and the wire bundle is clamped between the passive wheel assembly 600 and the active wheel assembly 300.

[0029] Specifically, Figure 5 As shown, the driving motor 200 is fixed to the main body of the wire laying machine by bolts, and the fixed bracket 100 is convex and fixed by bolts at the position between the steering assembly and the re-feeding assembly of the main body of the wire laying machine; the fixed bracket 100 is provided with a driving wheel assembly 300 extending outward, and the driving wheel assembly 300 uses the driving motor 200 to realize power transmission through a synchronous belt or chain, so that the wire bundle can be transmitted downward. A guide assembly 400 is fixed to the top of the fixed bracket 100 by bolts, and the guide assembly 400 is located above the driving wheel assembly 300, so that the wire bundle can be clamped between the driving wheel assembly 300 and the passive wheel assembly 600 after passing through the guide assembly 400. The setting of the guide assembly 400 can separate each wire bundle from each other to avoid interference between the wire bundles. The bottom end of the fixed bracket 100 is designed in an arc shape, and the arc length reaches the bottom of the driving wheel assembly 300, so that the clamped wire bundle can be received and transported to the re-feeding assembly. A passive wheel assembly 600 is provided at the center of the fixed bracket 100. The passive wheel assembly 600 is close to the active wheel assembly 300, so that the wire bundle is clamped between the passive wheel assembly 600 and the active wheel assembly 300, and the distance between the passive wheel assembly 600 and the active wheel assembly 300 can be controlled separately to control each wire bundle individually.

[0030] In the embodiment of the present invention, the fixing bracket 100 includes a left fixing bracket 101, a right fixing bracket 102, an upper bracket 103 and a lower bracket 104; The upper bracket 103 is in the shape of a door, one end of the upper bracket 103 is connected to the left fixing frame 101 by bolts, and the other end of the upper bracket 103 is connected to the right fixing frame 102 by bolts. The upper bracket 103 is vertically connected to two parallel lower brackets 104, and the passive wheel assembly 600 is fixedly connected between the two parallel lower brackets 104. The right fixing frame 102 is fixedly connected to the active rotating wheel assembly 300, the upper bracket 103 is fixedly connected to the guide assembly 400, and the bottom end of the lower bracket 104 is fixedly connected to the spacer assembly 500.

[0031] Specifically, Figure 1As shown, the fixed bracket 100 is connected to the left fixed bracket 101 and the right fixed bracket 102 by bolts at both ends through a door-shaped upper bracket 103, and two parallel lower brackets 104 are vertically arranged downward from the bottom end of the upper bracket 103. The middle parts of the two parallel lower brackets 104 form a space to fix the passive wheel assembly 600, and the front end of the right fixed bracket 102 is fixed with the active wheel assembly 300 by bolts. The active wheel assembly 300 and the passive wheel assembly 600 are close to each other with a gap in the middle for clamping the wire bundle; the top end of the upper bracket 103 is fixed with the guide assembly 400 by bolts, and the bottom ends of the two lower brackets 104 are fixed with the spacer assembly 500.

[0032] In the embodiment of the present invention, the driving wheel assembly 300 includes a pulley bracket 301, a first rotating shaft 302, a transmission wheel 303, a coupling 304, a second rotating shaft 305, a driving wheel frame 306, a rotating gear 307 and a driving wheel 308; The pulley bracket 301 is fixedly connected to the right fixed frame 102, and the first rotating shaft 302 is penetrated by the pulley bracket 301, and the transmission wheel 303 is sleeved on the first rotating shaft 302, and the transmission wheel 303 is connected to the driving motor 200 in a transmission manner. The end of the first rotating shaft 302 away from the right fixed frame 102 is connected to the second rotating shaft 305 in a rotational manner through a coupling 304, and the second rotating shaft 305 is penetrated by the driving wheel frame 306, and the driving wheel frame 306 is fixedly connected to the passive wheel assembly 600. The middle part of the second rotating shaft 305 is sleeved with a rotating gear 307, and the outer circumference of the rotating gear 307 is engaged with the inner circumference of the driving wheel 308, so that the rotating gear 307 drives the driving wheel 308 to rotate, and the driving wheel 308 is arranged opposite to the passive wheel assembly 600. The output shaft of the driving motor 200 is provided with an output wheel 201, and the output wheel 201 is connected to the transmission wheel 303 in a transmission manner through a synchronous belt 202.

[0033] Specifically, Figure 2 As shown, the pulley bracket 301 is in a right angle shape, one end of which is fixedly connected to the end of the right fixed frame 102, and the other end is provided with a hole and a first rotating shaft 302 is inserted into the hole. A transmission wheel 303 is sleeved on the first rotating shaft 302, and the transmission wheel 303 is connected to the output wheel 201 set on the output shaft of the driving motor 200 through the synchronous belt 202, so that the transmission wheel 303 rotates and drives the first rotating shaft 302 to rotate. Since the first rotating shaft 302 is connected to the second rotating shaft 305 through the coupling 304, the second rotating shaft 305 also rotates accordingly, and the second rotating shaft 305 is penetrated by the active rotating wheel frame 306, and the active rotating wheel frame 306 is fixedly connected to the passive wheel assembly 600 through the threaded hole. The rotating gear 307 on the second rotating shaft 305 rotates accordingly, and drives the active rotating wheel 308 clamped on the surface to rotate. Thus, the active rotating wheel assembly 300 can clamp the wire bundle with the passive wheel assembly 600, and rotate downward to drive the wire bundle to move downward.

[0034] It should be noted that a synchronous belt 202 , a chain or other transmission structures may be used between the transmission wheel 303 and the output wheel 201 to drive the transmission wheel 303 to rotate.

[0035] It should be noted that the rotating gear 307 and the driving rotating wheel 308 may be engaged by a snap connection, a ratchet connection or a meshing connection, so that the driving rotating wheel 308 can be driven to rotate by the rotating gear 307 .

[0036] In the embodiment of the present invention, the passive wheel assembly 600 includes an outer bracket 601, a cylinder frame 602, a cylinder 603, a telescopic rod 604, a passive wheel frame 605 and a passive wheel 606; The outer bracket 601 is in the shape of a door, and the surface of the outer bracket 601 is fixedly connected to the active rotary wheel assembly 300. A plurality of cylinder frames 602 are arranged in parallel in the outer bracket 601. A cylinder 603 is arranged at one end of each cylinder frame 602. A through hole is opened on the outer surface of each cylinder frame 602. A telescopic rod 604 is arranged in the through hole. The telescopic rod 604 passes through the through hole and is fixedly connected to a passive wheel frame 605. A passive wheel 606 is fixedly connected to one end of the passive wheel frame 605 away from the cylinder frame 602. The passive wheel 606 is arranged opposite to the active rotary wheel assembly 300.

[0037] Specifically, Figure 3 , Figure 4 As shown, the outer bracket 601 is in a door shape, the top of the outer bracket 601 is fixedly connected to the upper bracket 103 and fixed between two parallel lower brackets 104, the front end surface of the outer bracket 601 is fixedly connected to the active rotating wheel assembly 300, and the inner part of the door-shaped outer bracket 601 is fixedly connected to a cylinder frame 602, one end of the cylinder frame 602 is provided with 1 to 3 cylinders 603, and a through hole is opened on the cylinder frame 602, and a telescopic rod 604 is inserted into the through hole so that the telescopic rod is arranged parallel to the cylinder 603, and the telescopic rod 604 passes through the through hole and is fixedly connected to a passive wheel frame 605, and the passive wheel frame 605 is fixedly connected to one end away from the cylinder frame 602 with a passive wheel 606. The cylinder 603 generates a force that pushes forward, and the passive wheel frame 605 can slide forward through the telescopic rod 604, thereby driving the passive wheel 606 to move forward. At this time, the active rotating wheel 308 is located at the front end of the passive wheel 606, thereby controlling the distance between the passive wheel 606 and the active rotating wheel 308. When a certain tow needs to be sent, the corresponding cylinder 603 will drive the passive wheel 606 to extend, and the passive wheel 606 extends and clamps the tow with the active rotating wheel 308, and drives the tow to move downward.

[0038] It should be noted that the cylinder frame 602 can be set according to the number of actually clamped tows, such as Figure 4 As shown, when there are four tows, four cylinder racks 602 and driven wheels 606 are provided.

[0039] In the embodiment of the present invention, the guide assembly 400 includes a guide frame 401, a partition plate 402, a first fixed shaft 403 and a first sliding roller 404; A guide frame 401 is fixedly connected to the top of the upper bracket 103. A plurality of partitions 402 are arranged on the guide frame 401. A sliding groove is formed between two adjacent partitions 402. A first fixed shaft 403 is arranged on the guide frame 401. The first fixed shaft 403 is sleeved with first sliding rollers 404 corresponding to the number of the sliding grooves.

[0040] Specifically, Figure 1 As shown, the top of the upper bracket 103 is fixedly connected to a guide frame 401, and a plurality of trapezoidal partitions 402 are arranged on the guide frame 401, so that sliding grooves are formed between two adjacent partitions 402, and the number of sliding grooves is the same as the number of actually clamped wire bundles, so that the turned wire bundles are separated and smoothly enter between the active rotating wheel 308 and the passive wheel 606 below, and a first fixed shaft 403 is provided on the guide frame 401, and each sliding groove has a first sliding roller 404 fixedly mounted on the first fixed shaft 403, so as to prevent the wire bundles from sliding out of the guide assembly 400 during the downward movement, thereby limiting the position of the wire bundles.

[0041] The spacer assembly 500 includes a second fixed shaft 501, a spacer plate 502 and a second sliding roller 503; A second fixed shaft 501 is fixedly connected between the ends of the two lower brackets 104 , and a plurality of spacer plates 502 are evenly spaced apart on the second fixed shaft 501 . The spacer plates 502 are each provided with a concentric hole, and a second sliding roller 503 is inserted into the concentric hole.

[0042] Specifically, the ends of the two lower brackets 104 are hook-shaped, so that the position of the second fixed shaft 501 can be parallel to the guide frame 401 to receive the clamped wire bundle. The second fixed shaft 501 is fixedly connected between the ends of the two lower brackets 104. Spacer plates 502 are evenly spaced on the second fixed shaft 501. The number of spacer plates 502 is the same as the number of actually clamped wire bundles. Concentric holes are opened on the spacer plates 502, and second sliding rollers 503 are inserted in the concentric holes to prevent the wire bundle from sliding out of the spacer assembly 500 during the downward movement, thereby limiting the position of the wire bundle.

[0043] In the embodiment of the present invention, the driving motor 200 is fixed to the wire laying machine body by bolts. The material of the fixing bracket 100 is aluminum alloy, titanium alloy or glass fiber reinforced plastic.

[0044] Specifically, the driving motor 200 is fixed to the wire laying machine body by bolts, and can transmit power through the synchronous belt 202, avoiding the addition of additional motors to increase the volume and weight of the wire laying machine.

[0045] The material of the fixing bracket 100 is aluminum alloy, titanium alloy, glass fiber reinforced plastic or other lightweight materials. The fixing bracket 100 uses lightweight materials to reduce the weight of the entire device and improve the mobility and flexibility of the device.

[0046] The present invention also provides a method for using the wire laying head pre-re-feeding device, such as Figure 6 , Figure 7 As shown, the following steps are included: Step 1: Fix the fixing bracket 100 between the steering assembly and the re-feeding assembly of the wire laying machine by means of bolts, and separate the tow transmitted from the steering assembly through the guide assembly 400 to obtain the separated tow; Specifically, the fixed bracket 100 needs to be positioned between the steering assembly and the re-feeding assembly of the wire laying machine to ensure that the tow can pass smoothly, and the fixed bracket 100 is fixed to the wire laying machine through the preset holes using appropriate bolts; the fixed bracket 100 is calibrated to ensure that its contact surface with the wire laying machine is level to reduce the deviation of the tow caused by the instability of the bracket. The tow transmitted from the steering assembly passes through the sliding groove formed by the guide assembly 400 to separate the tow to obtain the separated tow; Step 2: The driving motor 200 drives the active rotary wheel assembly 300 to rotate and controls the passive rotary wheel assembly 600 to extend and retract, so that the separated silk bundle can be clamped between the passive rotary wheel assembly 600 and the active rotary wheel assembly 300, and the clamping force is used to drive the separated silk bundle to move downward, thereby obtaining a clamped silk bundle; Specifically, according to the material and thickness of the tow, the speed and torque parameters of the driving motor 200 are set, the driving motor 200 is started, and the driving motor 200 drives the active wheel assembly 300 to rotate, and at the same time controls the extension and retraction of the passive wheel assembly 600, so that the active wheel 308 and the passive wheel 606 can clamp the tow to meet the width and tension requirements of different tows; Step 3: The clamped tow is kept divided by the spacer assembly 500 and transferred to the re-delivery assembly for re-delivery, thereby completing the pre-re-delivery of the wire laying head.

[0047] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A wire placement head pre-weighting device, characterized in that: include: A fixed bracket (100), a driving motor (200), a driving wheel assembly (300), a guide assembly (400), a spacer assembly (500), and a driven wheel assembly (600); The driving motor (200) is arranged on one side of the fixed bracket (100), and the active rotary wheel assembly (300) is arranged on the other side of the fixed bracket (100); the active rotary wheel assembly (300) is in transmission connection with the driving motor (200); the guide assembly (400) is arranged above the active rotary wheel assembly (300) through the fixed bracket (100); the spacer assembly (500) is arranged below the active rotary wheel assembly (300) through the fixed bracket (100); the passive wheel assembly (600) is arranged in the middle of the fixed bracket (100); and the wire bundle is clamped between the passive wheel assembly (600) and the active rotary wheel assembly (300).

2. The wire placing head pre-weighting device according to claim 1, characterized in that: The fixing bracket (100) comprises a left fixing bracket (101), a right fixing bracket (102), an upper bracket (103) and a lower bracket (104); The upper bracket (103) is in the shape of a door. One end of the upper bracket (103) is connected to the left fixing bracket (101) by bolts. The other end of the upper bracket (103) is connected to the right fixing bracket (102) by bolts. The upper bracket (103) is vertically connected to two lower brackets (104) arranged in parallel. The passive wheel assembly (600) is fixedly connected between the two lower brackets (104) arranged in parallel. The right fixing bracket (102) is fixedly connected to the active rotating wheel assembly (300). The upper bracket (103) is fixedly connected to the guide assembly (400). The bottom end of the lower bracket (104) is fixedly connected to the spacer assembly (500).

3. The wire placing head pre-weighting device according to claim 2, characterized in that: The driving rotating wheel assembly (300) comprises a pulley support (301), a first rotating shaft (302), a transmission wheel (303), a coupling (304), a second rotating shaft (305), a driving rotating wheel frame (306), a rotating gear (307) and a driving rotating wheel (308); The pulley bracket (301) is fixedly connected to the end of the right fixed frame (102); the first rotating shaft (302) is passed through the pulley bracket (301); the transmission wheel (303) is sleeved on the first rotating shaft (302); the transmission wheel (303) is transmission-connected to the drive motor (200); one end of the first rotating shaft (302) away from the right fixed frame (102) is rotationally connected to the second rotating shaft (305) via the coupling (304); the second rotating shaft (305) is rotationally connected to the right fixed frame (102); the first rotating shaft (302) is rotationally connected to the second rotating shaft (305) via the coupling (304 ... The driving shaft (305) is inserted into the driving rotating wheel frame (306), the driving rotating wheel frame (306) is fixedly connected to the driven wheel assembly (600), the middle part of the second rotating shaft (305) is sleeved with the rotating gear (307), the outer circumference of the rotating gear (307) is engaged with the inner circumference of the driving rotating wheel (308), so that the rotating gear (307) drives the driving rotating wheel (308) to rotate, and the driving rotating wheel (308) and the driven wheel assembly (600) are arranged opposite to each other.

4. The wire placing head pre-weighting device according to claim 3, characterized in that: An output wheel (201) is arranged on the output shaft of the driving motor (200), and the output wheel (201) is drivingly connected to the transmission wheel (303) via a synchronous belt (202).

5. The wire placing head pre-weighting device according to claim 2, characterized in that: The passive wheel assembly (600) comprises an outer bracket (601), a cylinder frame (602), a cylinder (603), a telescopic rod (604), a passive wheel frame (605) and a passive wheel (606); The outer bracket (601) is in the shape of a door. The surface of the outer bracket (601) is fixedly connected to the driving wheel assembly (300). A plurality of cylinder frames (602) arranged in parallel are arranged inside the outer bracket (601). The cylinder (603) is arranged at one end of each cylinder frame (602). A through hole is opened on the outer surface of each cylinder frame (602). The telescopic rod (604) is arranged in the through hole. The telescopic rod (604) passes through the through hole and is fixedly connected to the passive wheel frame (605). The passive wheel (606) is fixedly connected to one end of the passive wheel frame (605) away from the cylinder frame (602). The passive wheel (606) is arranged opposite to the driving wheel assembly (300).

6. The wire placing head pre-weighting device according to claim 2, characterized in that: The guide assembly (400) comprises a guide frame (401), a partition (402), a first fixed shaft (403) and a first sliding roller (404); The top end of the upper bracket (103) is fixedly connected to the guide frame (401), a plurality of partitions (402) are arranged on the guide frame (401), a sliding groove is formed between two adjacent partitions (402), the guide frame (401) is provided with the first fixed shaft (403), and the first fixed shaft (403) is sleeved with the first sliding rollers (404) corresponding to the number of the sliding grooves.

7. The wire placing head pre-weighting device according to claim 2, characterized in that: The spacer assembly (500) comprises a second fixed shaft (501), a spacer plate (502) and a second sliding roller (503); The second fixed shaft (501) is fixedly connected between the ends of the two lower brackets (104), and a plurality of spacer plates (502) are evenly spaced apart on the second fixed shaft (501). The spacer plates (502) are each provided with a concentric hole, and the second sliding roller (503) is inserted into the concentric hole.

8. The wire placing head pre-weighting device according to claim 1, characterized in that: The driving motor (200) is fixed to the wire laying machine body by means of bolts.

9. The wire placing head pre-weighting device according to claim 2, characterized in that: The material of the fixing bracket (100) is aluminum alloy, titanium alloy or glass fiber reinforced plastic.

10. A method for using the wire placement head pre-weighting device according to any one of claims 1 to 9, characterized in that: The following steps are involved: Step 1: fixing the fixed bracket (100) between the steering assembly and the re-feeding assembly of the wire laying machine by means of bolts, and separating the wire bundles transmitted from the steering assembly through the guide assembly (400) to obtain separated wire bundles; Step 2: The driving motor (200) drives the active rotary wheel assembly (300) to rotate and controls the passive wheel assembly (600) to extend and retract, so that the separated silk bundle can be clamped between the passive wheel assembly (600) and the active rotary wheel assembly (300), and the clamping force is used to drive the separated silk bundle to move downward, thereby obtaining a clamped silk bundle; Step 3: The clamped filament bundle is kept divided by the spacer assembly (500) and transferred to the re-delivery assembly for re-delivery, thereby completing the pre-re-delivery of the fiber placement head.

Images